JPS62116195A - Technique diagnostic paper for tennis - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a diagnostic form for the skill of a tennis player.

(Prior Art) Today, the number of tennis facilities has increased in Japan. However, the reality is that it cannot be denied that the system and technical guidance are lagging behind. especially,
There is no set standard or scale for tennis skill, and tests are conducted based on the instructor's empirical judgment.For example, at tennis schools, students are often divided into classes such as advanced, intermediate, and beginner. However, it is common for players to be divided into classes based on the subjective opinion of the coach, the school's policy, the player's years of experience, etc., and at some schools,
The method for determining the skill level of individual players is unspecified, such as an intermediate player becoming a beginner at another school. Therefore, it is difficult for each player to play according to his/her level, not only in tournaments within clubs and schools, but also in competitions between clubs and schools, and in international competitions for general players. Furthermore, in situations where the relationship is unknown, players are reluctant to play because they do not know each other's skills, and the current situation is that social interaction does not develop.

This is entirely due to the lack of an objective, scientific method or measure for determining skill.

(Problems to be Solved by the Invention) The present inventor aims to eliminate the shortcomings of the conventional method of determining tennis skill, which was based on the impressions or empirical judgments of individual coaches and players, and to objectively determine tennis skill using a scientific method. As a result of many years of research on how to visually determine a player's skill, we have been able to define the content for diagnosing skill and clearly score the results.Moreover, this scoring result can accurately assess a player's skill. We have found a method that can reflect this, and have completed the present invention as a tennis skill diagnostic sheet that can be used in this method.

(Means for solving the problem) That is, the present invention provides a 'forehand stroke', r
Backhand stroke", "Volley.

, ``Overhead'', ``Lob'', and ``Drop Shot'', and ``Forehand Stroke'' and ``Drop Shot''.
"Backhand Stroke" column is "Cross" respectively.
, ``Down the Line''.

1 “Cross under spin” and “Cross under spin”
The "serve" field is subdivided into "use court" and "advantage court," and each is further divided into "r".
The 'Volley' column is subdivided into '10-Volley' and 'High Volley', and each is further subdivided into 'Forehand' and 'R-Back'.
1 Overhead column is subdivided into ``Right Side'', ``R Left Side'' and 1 Alternate'' column, and ``Lob,
and “Drop Shot” column respectively.
This is a tennis skill diagnosis form characterized by subdividing into "back" and "back", displaying a predetermined score in each column, and further providing a space for writing in the player's score.

(Example) An example is shown in Figure 1, and this table further includes the date of the test, player name, player's date of birth,
There are columns to record age, gender, year you started playing tennis, years of experience, FF1 lessons you took at school, etc., as well as columns for judgment rating, evaluator's signature, certificate issue date, certificate number, and certification level. It can also be provided separately.

Below, the method of recording in each column will be explained for the case where the player is a right-handed hitter.

(1) Forehand stroke field a) Cross As shown in Figure 2, on the baseline, starting from the midpoint between the singles sideline and the center mark, draw line a on the court toward the intersection of the net and center line. , and draw line b extending the center line to the center mark.

As shown in Figure 2, the player undergoing the diagnosis or test (P) stands at P near the center mark on the opposite court, and the person conducting the diagnosis or test (F) stands at F on the diagram and holds the ball. An easy ball with no special spin is tossed so that it bounces near the toss position (T), and the player returns the ball so that it goes into the singles cross court.

After confirming the bounce position of the ball that was hit back, F will toss the next ball and test it.

If the returned ball bounces into the area marked 2, 2 points will be given; if it bounces into the area marked 1, 1 point will be given; if the ball falls anywhere else, 0 points will be given. Point. Even if the ball bounces into each area after hitting the net (so-called net-in), points are awarded according to the area where the ball bounced. If it falls on the line, it is considered in, and the higher points (2 points if it falls on line a) are awarded (the same applies hereinafter).

b> Down the Line As shown in Figure 3, on the baseline, starting from the midpoint between the singles sideline and the center mark, draw a line C parallel to the center line to the net position. F is
The ball is tossed towards P in exactly the same way as in the case of letting the cross hit in a), but P now returns the ball down the line (straight). The examiner checks the bounce position of the ball that was hit back, and
2 points will be given if the ball bounces into the area marked as , 1 point will be given if the ball bounces into the area marked as 1,
If the ball falls anywhere else, it will be scored 0 points.

When the ball goes into the net, the same processing as in the case of a) cross is performed. 1. After having the player practice two pitches, a test is conducted and the player is able to score a 10 on a cross using his or her favorite shot.
After having the player hit the ball 10 times down the line, he then specifies the rotation of the ball and has the player hit the ball 5 times with topspin, 5 times with underspin, and 5 times cross court.

If you specify the rotation of this ball, F will check the rotation of the ball as well as the area where the ball bounces, and if the rotation of the ball is different from the specified one, it will temporarily move into the targeted area. The score will be recorded for each item (out of 60 points).

(2) Backhand Stroke Column a) Cross Draw line d as shown in Figure 4, symmetrical to Figure 2. F tosses the ball so that it bounces near the toss position (T), and P returns the ball cross court with his backhand.

b) Down-the-Line In a form symmetrical to Figure 3, line e is drawn as shown in Figure 5. This time, P hits the ball back down the line (straight). After practicing one or two balls, P takes a test and hits a cross with P's favorite shot.
After having them hit 0 times, 10 times down the line, this time, have them hit 5 times with topspin, 5 times with underspin, and cross court, and calculate their score (out of 60 points) in the same way as for forehands. Record.

In addition, in the case of left-handed hitting, the forehand stroke is
Perform the backhand stroke as shown in Figure 4.5.
．． Do this in Figure 3 and record the score exactly as you would for a right-handed hitter.

(3) As shown in Figure 6 in the Zarp section, draw lines f and g that vertically bisect the use court and advantage court.

a) The play court player stands in position ■ and serves 5 times with a flat serve aiming for ■, 5 times slice serve aiming for ■, and 10 balls aiming for ■■ one ball at a time with his favorite serve. Serve.

b) The advantage court player stands in the position of ■, aiming for ■ with his/her specialty serve five times, aiming for ■ and making a topspin serve five times,
Serve 10 balls using your specialty serve, aiming for ■■ one by one.

In the case of a left-handed player, the left and right sides are reversed; a serve aimed at ■ is flat, a serve aimed at ■ is sliced,
A serve aimed at ■ will result in topspin. If you serve only in the specified area (for example, if you serve to ■), the score will be counted as 2 points if it enters the specified area ■, but it is valid as a serve even though it is outside the designated area. 1 point will be given if the ball falls into area ■; otherwise, 0 points will be given. In addition, if the serve is alternately aimed at an area, one point will be awarded only if the serve hits the targeted area, and zero points will be awarded if the serve goes into another area.

In the case of net-in, the judgment is also made according to the area in which it entered. If the type of serve is specified, the examiner will check the type of serve as well as the area where the ball entered, and even if the serve enters the intended area, the type of serve will not match. is given 0 points. Record a score (out of 60 points) for each item.

(4) Volley Column As shown in Figure 7, draw a line h that horizontally bisects the back court.

a) Low volley P is set at position P (low volley) in the diagram, and F is 5 balls from position F or F, at P's feet on the forehand side and on the backhand side, so as not to interfere with the volley. Toss 5 low balls. P returns the ball with a volley aimed at the backcourt without bounds.

b) High volley P should be held at position P (high volley), and F should hold 5 balls on the forehand side from position F or F at the height of P's shoulder so as not to interfere with the volley. Toss 5 balls to the backhand side. P steps up, aims the ball toward the backcourt, and hits it back with a high volley. As for the score, if you enter the area marked 2, you will receive 2 points, if you enter the area marked 1, you will be given 1 point, and in any other place you will receive 0 points.

Even in the case of a ball that goes 1-in, it is judged at the point where it lands, and the score obtained (out of 40 points) is recorded.

(5) Draw line b, which is an extension of the center line, as shown in Figure 8 in the overhead column. The examiner, from position F, raises a lob over the head of the player located at P, and the player hits the ball back to the right and left sides of the court.

Aim for the right side 5 times, aim for the left side 5 times, aim for the right side and left side alternately for each ball 10 times,
Hit overhead. The score will be counted if you enter the area marked 2, give 2 points, if you enter the area marked 1, give 1 point, otherwise give 0 points. A ball that goes into the net is also judged at the point where it lands, and the resulting score (out of 40 points) is recorded.

(6) Rob As shown in FIG. 9, a line h similar to that in FIG. 7 is drawn.

From position F in the diagram, F tosses the ball to the forehand side and backhand side, similar to the strokes in (1) and (2), and P approaches the ball and makes a lob. In this case, the standard for a lob is the ball that passes over F's head, and a ball that F can reach by simply extending his hand without moving his feet is not considered a lob. Therefore, in this case, even if it enters area 1.2, 0
Point. P lobs 10 times on the forehand and 10 times on the backhand. If you enter the area marked 2, you will receive 2 points; if you enter the area marked 1, you will receive 1 point; if you are net-in or in any other case, you will receive 0 points, and the score will be 0 points. (out of 40 points).

(7> Drop Shot Column As shown in Figure 10, the player stands at position P, and F tosses the ball so that it bounces from position F to around point T, , T, in the figure. The player returns this ball by dropping a forehand shot and 10 times with a nick hand. Scores are given based on the number of bounces the ball makes before leaving the service box.If the ball stops without leaving the service box or bounces 3 times before leaving the service box, 2 points, 2 bounces. If you do so, you will receive 1 point, otherwise you will receive 0 points.Even if you go online, you will be judged using the same criteria and each score (out of 40) will be recorded.

The total score of each score above can be directly used as a player's rating, and can be used as a measure of skill.
It is easy to classify players' skills, but for example, players with a total score of 91 points or less are classified as having a rate of 1.0.
．． 92-113 points are rate 1.5, 114-136 points are rate 2. You can also use international rates such as θ, which are divided into 13 levels in 0.5 increments from 1.0 to 7.0, or the traditional Japanese dan and kyu, and make scores correspond to satsu-kyū. .

(Effects of the Invention) According to the tennis skill diagnosis sheet of the present invention, tennis skill can be determined objectively and scientifically. Therefore,
For example, similar to the official handicap in golf, you can recognize your skill level with yourself and others, and based on the results, you can not only enjoy playing tennis more with opponents of similar skill. , you can improve your skills step by step and effectively. Diagnosis using the present invention has been tested using a double-blind method, and it has been found that there is an extremely good correlation between the test results obtained by a large number of testers and the results obtained by statistically processing variations. Proven. In other words, there is a difference between skill and points between the rate determined by observing a certain player by several examiners and processing the variations, and the points that the player obtained through the examination using the present invention. Good linearity was obtained. Furthermore, the diagnosis according to the present invention is devised so that it can be carried out in about 30 minutes even if all the items are carried out, and it is also possible to clearly diagnose each player's strengths and weaknesses.

[Brief explanation of drawings]

FIG. 1 is a plan view of an embodiment of the present invention, and FIGS. 2 to 10 are plan views of a tennis court used when recording scores in each column of the tennis skill diagnosis sheet of the present invention. P
, P r , P t are players, F. F1. F t is the person who diagnoses or tests, T, T,...
T. is the position to toss the ball, and a-h are line segments drawn on the tennis court. P P Figure 2 VB2 No. 1=] Tomi 50Vjz diagram v9a+ No. 101 ¥1

Claims (1)

[Claims] 1. "Forehand stroke", "Backhand stroke", "Volley", "Overhead", "Lob"
and “Drop Shot,” and the “Forehand Stroke” and “Backhand Stroke” columns are subdivided into “Cross,” “Down the Line,” “Cross Topspin,” and “Cross Underspin,” respectively. , the ``Serve'' column is subdivided into ``Deuce Court'' and ``Advantage Court,'' which are further subdivided into ``Center,''``Side,'' and ``Alternate,'' and ``Volley.''
The column is subdivided into "low volley" and "high volley".
Furthermore, each is subdivided into "fore" and "back", and the "overhead" column is divided into "right side".
, subdivided into "left side" and "alternating", "lob" and "
The ``Drop Shot'' columns are ``Forehand'' and ``Drop Shot,'' respectively.
A tennis skill diagnosis sheet characterized in that it is subdivided into ``backs'', each column displays a predetermined score, and a space is provided for writing in the player's score.